Function: square(gradient[0](sum(numbers("xxr") if numbers('xyy') > numbers('rrr') else numbers('yxy'), numbers('yxy')) if numbers('yxy') > band pass(sum(numbers('xyy') if numbers('rrr') > numbers("xxr") else numbers('yxy'), numbers('yxy'))) else numbers("xxr") if numbers('rrr') > numbers('xyy') else numbers('yxy')))
